Need help Deleted 1.6 tb file not clearing space
I have a 3Tb fusion drive on a 5k iMac and I was running out of space so I backed up my Aperture library that has all of my work ( I use smaller libraries to edit etc) checked that it worked and deleted the 1.6Tb file from within a program called Disk inventory X... It is gone as far as I can tell and still the computer thinks that the space is used. I replaced my time machine with a fresh 3Tb drive and the backup that is taking up the full drive. I have restarted the machine multiple times and ran disk utilities check disk , verify etc.
Is there a way to force the mac to check every file to make sure it is still there?